.btn {
    display: inline-block;
    padding: .5em 1em;
    border: 0 none;
    border: 1px solid rgba(0, 0, 0, .25);
    -moz-border-radius: $hw-border-radius;
    -webkit-border-radius: $hw-border-radius;
    border-radius: $hw-border-radius;
    background-image: none;
    box-shadow: 0 1px rgba(0, 0, 0, .15), inset 0 1px rgba(255, 255, 255, .15);
    color: #fff;
    text-align: center;
    text-decoration: none;
    text-shadow: 1px 1px rgba(0, 0, 0, .1);
    font-size: 100%;
    font-family: inherit;
    font-weight: inherit;
    white-space: nowrap;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
    overflow: visible;
    cursor: pointer;
    position: relative;
    z-index: 2;
}

.btn:hover,
.btn:focus {
    text-decoration: none;
    //background-image: linear-gradient(to bottom, rgba(0, 0, 0, .1), rgba(0, 0, 0, .1));
}

.btn:focus {
    outline: none;
    // outline: 5px auto -webkit-focus-ring-color;
    outline-offset: -2px;
}

.btn:active {
    //box-shadow: 0 1px rgba(0, 0, 0, .2), inset 0 1px rgba(0, 0, 0, .05);
    outline: none;
}

//button-variant($background, $border, $hover-background: darken($background, 7.5%), $hover-border: darken($border, 10%), $active-background: darken($background, 10%), $active-border: darken($border, 12.5%))
@each $color,
$value in $hw-colors {
    .btn-#{$color} {
        @include button-variant($value, $value);
    }
}